Thermo Scientific Nicolet FT-IR Manuale utente
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269-159402, Rev A
Contents
Introduction........................................................................................ 1
Questions and concerns ............................................................... 2
Conventions used in this manual................................................. 2
Safety precautions........................................................................ 3
TGA-IR Module components...................................................... 4
The front panel....................................................................... 5
The rear panel ........................................................................ 7
Using the TGA-IR Module................................................................ 9
Principles of operation................................................................. 9
Setting up the module ................................................................ 10
Connecting the purge line.................................................... 10
Connecting the transfer and exhaust gas lines..................... 12
Verifying the installation..................................................... 15
Setting the temperature........................................................ 16
Using the remote start option............................................... 16
Cooling the detector................................................................... 17
Operating tips............................................................................. 19
Maintenance..................................................................................... 21
Checking and replacing fuses .................................................... 22
Troubleshooting......................................................................... 26
Specifications............................................................................. 27
TGA-IR Module User’s Guide 1
Introduction
This manual explains the features and components of the Thermo
Scientific TGA-IR Module. For information on performing TGA-IR
experiments, see the OMNIC Series Help.
Before operating the TGA-IR Module, you should have a working
knowledge of Thermo Scientific OMNIC™Series software. You will
also need to know the fundamentals of thermogravimetric analysis
and the operating characteristics of your thermogravimetric analyzer.
Warning The Accessory Safety Guide that came with your system contains
important safety information. Make sure you read this guide, and
follow the safety precautions provided there and later in this chapter
whenever you use the TGA-IR Module.
Questions
and concerns
In case of emergency, follow the procedures established by your
facility. If you have questions or concerns about safety or need
assistance with operation, repairs or replacement parts, you can
contact our sales or service representative in your area or use the
information at the beginning of this document to contact us.
Conventions
used in this manual
This manual includes safety precautions and other important
information presented in the following format:
Note Notes contain helpful supplementary information.
Important Follow instructions labeled “Important” to avoid damaging the
system hardware or losing data.
Caution Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Warning Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Danger Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
2 Thermo Fisher Scientific
Safety precautions Before you use the TGA-IR Module, make sure you read the
following safety precautions and both the Spectrometer Safety Guide
and the Accessory Safety Guide that came with your system. To help
prevent personal injury or equipment damage, follow all safety
precautions whenever you use the TGA-IR Module.
Warning The gas cell and the transfer line reach very high temperatures when
in use. To help avoid a severe burn or fire hazard, do not allow any
flammable object or part of the body to come into contact with the
gas cell or transfer line when they are in use. Use particular care
when working around surfaces marked with the following symbol:
Surfaces that are marked with this symbol range in temperature from
35 °C (95 °F) to 200 °C (400 °F) and can cause burns.
Warning To avoid a shock and fire hazard, do not allow water or other liquids
to come into contact with the internal components, and never attempt
to access the internal components of the TGA-IR Module.
TGA-IR Module User’s Guide 3
TGA-IR
Module components
The TGA-IR Module and its internal components are shown in the
following illustrations.
Gas cell
Transfer line
Mirror
Mirror
Exhaust
gas line
Detector
Mirror
Electronics box
4 Thermo Fisher Scientific
The front panel The four indicator lights on the front panel of the TGA-IR Module
show the current status of the system.
TGA-IR Module User’s Guide 5
The table below describes the function of each indicator light on the
front panel:
Indicator Function
Power This indicator is lit whenever the module power
is on. The power switch is on the rear panel.
(See the illustration in the next section.)
Transfer Line This indicator is lit when the transfer line is
being heated. When the temperature of the
transfer line is close to the setpoint, the indicator
cycles on and off.
Cell This indicator is lit when the gas cell is being
heated. When the temperature of the cell is close
to the setpoint, the indicator cycles on and off.
Alarm This indicator is lit when an alarm condition
occurs. The system responds by shutting off the
heater power. Alarm conditions can be caused by
an open thermocouple, the temperature of the gas
cell or transfer line being too high, or a
malfunctioning heater. If an alarm condition
occurs, turn the module power off and then
contact Technical Support for assistance.
Warning To avoid burn hazard, turn off the module power whenever the
alarm indicator lights. Allow the transfer lines and gas cell to cool
before you turn on the power to the module again.
6 Thermo Fisher Scientific
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